Spontaneous intracerebral hemorrhage (ICH) refers to primary non-traumatic parenchymal hemorrhage.Its mortality and disability are extremely high.A simple and easy clinical grading scale for ICH can not only evaluate the prognosis of patients,but also has an important guiding significance for clinical treatment and clinical research.This article reviews the contents of major intracerebral hemorrhage scales,external validation,advantages and disadvantages,and explains its scope of application and clinical application.

Hematoma growth is an independent risk factor for the prognosis of htracerebral hemorrhage.It is very common in the acute stage of intracerebral hemorrhage.There are many uncertainties about the definition,mechanisms,and influential factors of hematoma growth,and the effective therapy is lacking,therefore,early prevention and identification are critical.

Objective To evaluate the clinical performance of INNOVANCE D-Dimer,and provide information for clinical application.Methods 402 cases of sodium citrate anticoagulant blood were tested with INNOVANCE assay and PLUS assay on CA7000 analyzer to measure plasma D-Dimer levels.VIDAS-30 immunology analyzer was also used to validate the two assays.4 patients with elevated D-Dimer were monitored continuously during 5 days using INNOVANCE assay and PLUS assay respectively,then the consistency of trend between 2 assays was analyzed.Plasma specimens added with hemoglobin,bilimbin and triglyceride were used to verify the anti-interference capability of INNOVANCE D-Dimer assay.Results In 402 specimens,the result ranges of INNOVANCE D-Dimer and PLUS D-Dimer were [2.15 (0.33,8.63)]mg/L FEU and [325.50 (123.75,974.00)] μ,g/L DDU,respectively.The consistency between two assays was poor (Z =-17.375,P =0.000),especially the results in the range of PLUS D-Dimer (201-300) μg/L DDU and (301-400) μg/L DDU,the coincidence rates were only 25％ and 15％,respectively; the coincidence rate was up to 85％ during PLUS D-Dimer (500-600) μg/L DDU; the coincidence rate was close to 100％ when PLUS D-Dimer over 700 μg/L DDU.Totally 47 of 402 cases were unmatched between two assays.Verified by VIDAS 30,83.0％ (39/47) was false negative for PLUS assay,4.3％ (2/47) was false negative for INNOVANCE assay,12.7％ (6/47) was false positive for PLUS assay.There were 5 false positives and 39 false negative for PLUS assay,totally 45 cases; Two false negative for INNOVANCE assay.Four patients with elevated D-Dimer were monitored and the results showed similar trend between 2 assays.For INNOVANCE assay,the capacity of anti-interference to free bilirubin,unconjugated bilirubin,hemoglobin,and triglyceride was up to 217 μmol/L,337 μmol/L,41.04 g/L,18.35 mmol/L,respectively.Conclusions INNOVANCE assay can markedly reduce false negative results of D-Dimer compared with PLUS assay.INNOVANCE D-Dimer has good performance on anti-interference to jaundice,hemolysis and lipemia samples.

High-density channels are often used to acquire electroencephalogram (EEG) spatial information in different cortical regions of the brain in brain-computer interface (BCI) systems. However, applying excessive channels is inconvenient for signal acquisition, and it may bring artifacts. To avoid these defects, the common spatial pattern (CSP) algorithm was used for channel selection and a selection criteria based on norm-2 is proposed in this paper. The channels with the highest M scores were selected for the purpose of using fewer channels to acquire similar rate with high density channels. The Dataset III a from BCI competition 2005 were used for comparing the classification accuracies of three motor imagery between whole channels and the selected channels with the present proposed method. The experimental results showed that the classification accuracies of three subjects using the 20 channels selected with the present method were all higher than the classification accuracies using all 60 channels, which convinced that our method could be more effective and useful.
Algorithms ; Brain-Computer Interfaces ; Electroencephalography ; Humans ; Pattern Recognition, Physiological

Objective To analyze the correlation between anterior circulation artery stenosis and lacune or lacunar infarct(LI) in elderly patients.Methods A retrospective analysis of data was performed in 111 patients with intracranial artery atherosclerosis,ischemic cerebral infarction or transient ischemic attack from January to December 2016 in our hospital.All the patients underwent non-contrast brain MRI or CT scan,as well as one-stop dynamic whole brain 4D CT angiography and CT perfusion scan(CTA-CTP/ perfusion).Imaging data were retrospectively analyzed.Intracranial 4D CTA was produced by using MIP and CPR post processing.The correlation of intracranial internal carotid artery(ICA)and middle cerebral artery (MCA)stenosis with lacunar infarct or lacune was analyzed by chi-square test using IBM SPSS Statistics 22.0 software.Results The average age of 111 patients was(68.4± 6.8)years.A total of 19 phases with 6080 images were obtained by one-stop scanning.The optimal phase of artery visualization was selected from 19 phases for evaluating artery stenosis.Intracranial ICA and/or MCA stenosis were revealed in 94 patients,including 73(65.8％)patients with LI or lacune and 21 patients(18.9％)without LI or lacune.17 patients without intracranial ICA or anterior circulation of MCA stenosis included 7 patients(6.3 ％)with LI or lacune and 10 patients(9.0％)without LI or lacune.Anterior circulation vessels stenosis was positively correlated with lacunar infarction or lacune(x2 =7.794,P=0.005).94 patients with anterior circulation vessels stenosis were further divided into 2 subgroups:unilateral and bilateral stenosis.39 cases showed unilateral vessels stenosis,including 25 cases (26.6 ％) with LI or lacunein,and 14 cases (14.9 ％) without LI or lacunein.And 55 cases showed bilateral vessel stenosis,including 48 cases (51.1％)with LI or lacune,and 7 case (7.4 ％) without LI or lacune.The risk for LI or lacunein was statistically higher in bilateral vessel stenosis than in unilateral vessel stenosis(x2 =7.061,P=0.008).Patients with anterior circulation vessels stenosis combined with LI or lacune were 73 cases,including 31 cases of grade Ⅰ,19 cases of grade Ⅱ,14 cases of grade Ⅲ,and 9 cases of grade Ⅳaccording to Trial criteria(NASCET)classification,with no significant difference between the different grades of anterior circulation vessels stenosis.Conclusions A correlation between ICA or MCA stenosis and lacunar infarction or lacune may exist.Risk for lacunar infarction or lacune is higher in patients with bilateral artery stenosis than in patients with unilateral artery stenosis.

Objective To investigate the risk factors and patterns of radiation induced gastroduodenal complications in patients with pancreatic cancer following tomotherapy (TOMO) using endoscopy.Methods Patients with pancreatic cancer who were treated TOMO in Air Force General Hospital from February 2010 to May 2015 were collected.All patients underwent endoscopic examination before and after radiotherapy.The radiation injuries were observed,and factors influencing radiation-induced gastroduodenal complications were analyzed.Results The median time of gastroscopy after radiotherapy was 1 month,radiation gastritis and duodenitis were 41 cases (58.6％),radiation gastric and duodenal ulcers were 30 cases (42.9％),and hemorrhage 7 cases (10.0％),scar formation 3 cases (4.3％),6 cases (8.6％) had newly developed gastric retention,and 4 cases (5.7％) had newly developed gastric varix.Univariate analysis showed that relieving jaundice and radiation protection (amifostine) were associated with the development of radiation gastric ulcers (x2 =4.186,P =0.041;x2 =5.679,P =0.017).Conmon terminology criteria for adverse events (CTCAE) ≥2 was associated with the development of radiation duodenal ulcers (x2 =3.960,P =0.047).Mean dose (Dmean) ＞ 13.39 Gy and Dmean ≤13.39 Gy gastric ulcers rates were 25.0％ and 9.1％,respectively (AUC =0.740,P =0.048).Conclusion The TOMO induced gastroduodenal injury in patients with pancreatic cancer is frequent.Relieving jaundice is the protection of radiation gastric ulcer.Dmean ＞ 13.39 Gy is independent predictive factors for radiation gastric ulcers.Patients after TOMO should be examined by endoscopy early.

Objective To investigate the influence of simvastatin treatment on Toll-like receptor 4 (TLR4) in monocytes of peripheral blood in patients with sepsis and severe sepsis and its significance. Methods A prospective randomized controlled trial was conducted. 106 patients with sepsis and 92 patients with severe sepsis admitted to Department of Critical Care Medicine of Henan Provincial People's Hospital from August 2013 to June 2015 were enrolled. These two groups of patients were randomized into conventional treatment group and simvastatin group. All patients received treatment according to the 2012 International Sepsis Treatment Guidelines, including anti-infection drugs, nutritional support, and palliative treatment, and the patients with severe sepsis were given early goal-directed therapy (EGDT). The patients in simvastatin group received simvastatin 40 mg daily orally for at least 15 days. The peripheral blood was collected and the monocytes were isolated at 1, 5, 10, 15 days after intensive care unit (ICU) admission. TLR4 expression on the surface of TLR4/CD14+ double positive monocytes was determined by flow cytometry, and adverse reaction was observed during treatment. Results TLR4 expression on the surface of monocytes showed a tendency of decreasing with prolongation of simvastatin treatment in the simvastatin group in patients with sepsis (n = 59) or severe sepsis (n = 54). However, in patients with sepsis, TLR4 level was significantly decreased from 10 days in simvastatin group as compared with that of conventional therapy group (n = 47), and it was decreased up to 15 days [mean fluorescence intensity (MFI): 21 (19, 28) vs. 27 (25, 33) at 10 days, Z = 2.198, P = 0.021; 16 (15, 21) vs. 26 (23, 34) at 15 days, Z = 4.611, P = 0.002]. In patients with severe sepsis, there was no significant difference in TLR4 level at different time points between simvastatin group and conventional treatment group (n = 38) [MFI: 55 (52, 63) vs. 56 (48, 65) at 1 day, Z = 0.313, P = 0.692; 47 (42, 56) vs. 49 (41, 58) at 5 days, Z = 0.827, P = 0.533; 40 (35, 42) vs. 42 (37, 45) at 10 days, Z = 1.012, P = 0.301; 33 (30, 38) vs. 38 (35, 41) at 15 days, Z = 0.539, P = 0.571]. No adverse reaction related with simvastatin was found during treatment in patients with sepsis or severe sepsis. Conclusions Statins could significantly down-regulate the TLR4 expression on peripheral blood monocytes in septic patients, while it showed no significant influence on TLR4 expression in patients with severe sepsis. A different effect of statins on TLR4 expression and the downstream inflammation process in sepsis and severe sepsis patients might partially explain the discrepancy in previous reports about the therapeutic effect of statins therapy in sepsis and severe sepsis patients.

Objective To describe the endoscopic observation of pancreatic cancer radiotherapy induced gastro-duodenal radioactive injury, and investigate the influence of radiation-induced ulceration by concurrent chemoradio-therapy with S-1 (Tegafur Gimeracil Oteracil Potassium Capsule) and gemcitabine. Methods Self-comparative study of endoscopic performance were performed on patients received endoscopy before and after pancreatic cancer Chemoradiotherapy with S-1 or gemcitabine or radiotherapy only, from February 2010 to May 2015. Pearson chi-square test was used to analyze whether Concurrent Chemoradiotherapy groups and radiotherapy group are different in radiation-induced ulceration occurrence rate. Results The incidence of radiation-induced ulceration of radiother-apy group, S-1 group and gemcitabine group are 44.1 % (26/59), 50.0 % (10/20) and 46.7 % (7/15), respectively. Radiation-induced ulceration incidence was no statistical difference among the three groups. Conclusion From the angle of safety, patients can according to their self-condition for choosing S-1 or gemcitabine chemotherapy. Wether the concurrent chemoradiotherapy treatment was adopted or not, the occurrence rate of radiation-induced ulceration has no significant difference.

Objective To explore the correlation between acute gastrointestinal side effects caused by radiotherapy in pancreatic cancer and degree of gastroduodenal radioactive injury under gastoendoscopy.Methods From February 2010 to May 2015,112 patients with pancreatic cancer and received radiotherapy were enrolled.The correlation between gastroscopic findings and degree of gastrointestinal side effects (grade zero to five) was analyzed.The effects of different radiotherapy on the formation of radiation ulcers were also investigated.Chi-square test and Spearman correlation analysis were performed for statistically analysis.Results The incidence of radioactive gastroduodenitis was 57.1 ％ (64/112).The incidence of radiation-induced ulcer was 42.0 ％ (47/112).Among the 112 patients with pancreatic cancer and received radiotherapy,patients with over grade two nausea,vomiting,dyspepsia and constipation received symptomatic treatment.Thirty-one patients (27.7 ％) of them received appetitestimulating treatment,53 patients (47.3％) were given anti-nausea treatment,39 patients (34.8％)received therapy of promoting digestion,and 24 patients (21.4 ％) received therapy of relieving constipation.The incidence of radiation-induced ulcer in patients with grade one acute gastrointestinal side effects was 25.8 ％ (8/31),lower than that of patients with over grade two acute gastrointestinal side effects (48.1％,39/81),and the difference was statistically significant (x2 =4.595,P=0.032).The grade of acute gastrointestinal side effects was positively correlated with that of radiation-induced injury under gastroendoscopy (r=0.295,P =0.002).The incidences of radiation-induced ulcer of gamma knife radiotherapy and helical tomotherapy were 50.0 ％ (15/30) and 39.2 ％ (31/79),respectively,and the difference was not statistically significant (x2 =1.032,P =0.301).Conclusions The occurrence of radiation ulcers should be alerted if over grade two acute gastrointestinal side effects presented in patients with pancreatic cancer and received radiotherapy.The radiotherapy caused gastrointestinal side effects can not be evaluated just according to clinical symptoms.Endoscopic findings and pathological diagnosis are the gold standard.

Objective To analyze the endoscopic observation of gastroduodenal ulcer radioactive injury induced by pancreatic cancer radiotherapy, and to preliminary investigate the risk factors of radiation-induced ulcer after radiotherapy in patients with pancreatic cancer. Methods A total of 112 patients with pancreatic cancer who accepted gastroscopy before and after radiotherapy at Air Force General Hospital were collected. Self-comparative study of gastroscopic findings was performed on these patients. Single factor analysis and the logistic regression analysis model were used to analyze whether the clinical factors were likely to affect the radiation-induced ulcer or not. Results The total incidence of radiation-induced ulcer was 42.0 % (47/112) in 112 patients. The history of ulcer and grade 2 or more acute gastrointestinal symptoms (P= 0.036, P= 0.030) were the independent risk factors of radiation-induced ulcer. The rest clinical factors had no influence on the radiation-induced ulcer (all P>0.05). Conclusion In the radiotherapy of pancreatic cancer, patients who has the history of ulcer or grade 2 or more acute gastrointestinal symptoms should be alert to the occurrence of radiation-induced ulcer.